HESI A2 Chemistry Practice Test 2026 – Complete Exam Prep

The term "solvent" refers specifically to the substance in which a solute dissolves to form a solution. In a typical solution, the solvent is usually present in a greater amount compared to the solute, which is the substance that gets dissolved. The solvent has the ability to stabilize ions or molecules of the solute, allowing for a homogeneous mixture.

For example, when salt (the solute) is dissolved in water (the solvent), the water molecules interact with the sodium and chloride ions in the salt, effectively separating and surrounding them, which results in a uniform solution.

Understanding this definition is crucial in chemistry because the properties and behavior of solutions largely depend on the characteristics of the solvent, including its polarity, viscosity, and ability to engage in hydrogen bonding. This makes exploring various solutes and solvents essential for applications such as pharmaceuticals, environmental science, and biochemistry.